public Form1()
{
InitializeComponent();
ClientSize = new Size(729, 729);
m = new SierpinskiCarpet(new PointS(0, 0), (short)ClientSize.Width, 0, 7);
}
public SierpinskiCarpet(PointS topLeft, short width, int layer, int maxLayer)
{
Size = new SizeS(width, width);
TopLeft = topLeft;
if (layer < maxLayer)
{
short w = (short)(width / 3);
underlying = new SierpinskiCarpet[9];
underlying[0] = new SierpinskiCarpet(topLeft, w, layer + 1, maxLayer);
underlying[1] = new SierpinskiCarpet(new PointS((short)(topLeft.X + w), topLeft.Y), w, layer + 1, maxLayer);
underlying[2] = new SierpinskiCarpet(new PointS((short)(topLeft.X + w + w), topLeft.Y), w, layer + 1, maxLayer);
underlying[3] = new SierpinskiCarpet(new PointS(topLeft.X, (short)(topLeft.Y + w)), w, layer + 1, maxLayer);
underlying[4] = new SierpinskiCarpet(new PointS((short)(topLeft.X + w), (short)(topLeft.Y + w)), w, layer + 1, maxLayer);
underlying[5] = new SierpinskiCarpet(new PointS((short)(topLeft.X + w + w), (short)(topLeft.Y + w)), w, layer + 1, maxLayer);
underlying[6] = new SierpinskiCarpet(new PointS(topLeft.X, (short)(topLeft.Y + w + w)), w, layer + 1, maxLayer);
underlying[7] = new SierpinskiCarpet(new PointS((short)(topLeft.X + w), (short)(topLeft.Y + w + w)), w, layer + 1, maxLayer);
underlying[8] = new SierpinskiCarpet(new PointS((short)(topLeft.X + w + w), (short)(topLeft.Y + w + w)), w, layer + 1, maxLayer);
}
else
{
underlying = new SierpinskiCarpet[0];
}
}
private void DrawSponge(SierpinskiCarpet m, Graphics g)
{
if (m.underlying.Length > 0)
{
var x = m.underlying[4];
g.FillRectangle(Brushes.Black, new Rectangle(x.TopLeft.X, x.TopLeft.Y, x.Size.Width, x.Size.Height));
for (int i = 0; i < m.underlying.Length; i++)
{
if (i != 4)
{
DrawSponge(m.underlying[i], g);
}
}
}
}